How much time is required for complete decoposition of two moles of water using a current of 2 ampere ?
How much time is required for complete decoposition of two moles of water using a current of 2 ampere ?
(a) 1.93 x 105 sec
(b) 2.93 x 105 sec
(c) 0.93 x 105 sec
(d) 4.93 x 105 sec
7 views
1 Answers
Correct Option (a) 1.93 x 105 sec
Explanation
2H2O → 2H2 + H2
1 mole of H2O exchanges 2 moles of electrons, then 2 moles of H2O will exchange 4 moles of electrons. = 4 × 96500 coulomb
=4 x 96500/2sec
= 1.93 x 105 sec.
7 views
Answered